Father-in-law and I are planning on going up to the museum for the first time in Duluth in the summer if all pans out.

I have kind of a dumb thought on this Yellowstone... if they are running it on rollers every day the museum is open, isn't that (albeit VERY slowly) putting miles on the running gear? Or do they not 'run' it every day? Always been curious how much wear is realistically put on an engine on display in this manner, though there certainly are NOT many examples out there to compare it to.

I read the museum of the american railroad has eventual plans like this for their Big Boy (on the MOTAR's website), but ... definitely don't know of any current engines the size of 227 that run on display rollers.

I can't tell you how much they roll the drivers but when I've been there the drivers weren't going around and around. To me it seems a bit stupid, but at the same time it also shows those who've never been exposed to the running gear of a steam engine how it goes 'round and 'round.

Since there's no real weight on the drivers and they are moving very slowly and undoubtedly are lubricated I doubt it puts much wear on any part of the running gear. But since that engine isn't going anywhere anyway they might as well spin the wheels if it attracts customers.